Ear wind shield
US6325173A · kind A · utility
Inventor
Key dates
| Filing date | Oct 18, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Oct 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/086
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of alleviating the sound masking effects of wind noise on a cyclist wearing a safety helmet comprising the following steps: designing an ear cover shield having a generally smooth exterior side; positioning the cover shield adjacent to but generally spaced from an ear of the cyclist so that wind is generally deflected from the ear so that the noise of air rushing over the ear is substantially reduced, and the cyclist is better able to hear proximate sound especially that sound generated from directions which he cannot readily see; and, positioning and holding the cover shield adjacent to the ear most preferably by adjustably attaching it to a strap on the helmet. When wearing a cover shield, even in a strong wind, a cyclist is able to hear a vehicle approaching from the rear so that he can accordingly move close to the side of a roadway and ensure that his cycle moves in a straight, unswerving path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.